package io.github.xudaojie.rxjava;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;

import java.util.ArrayList;

import rx.Observable;
import rx.Observer;
import rx.functions.Action1;
import rx.functions.Func1;
import rx.functions.Func2;
import rx.functions.FuncN;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {

    private static final String TAG = MainActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.setDrawerListener(toggle);
        toggle.syncState();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);
    }

    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        if (id == R.id.nav_camera) {
            // Handle the camera action
        } else if (id == R.id.nav_gallery) {
            Observable.just(1, 2, 3, 4, 5)
                    .scan(new Func2<Integer, Integer, Integer>() {
                        @Override
                        public Integer call(Integer integer, Integer integer2) {
                            return integer + integer2;
                        }
                    })
                    .subscribe(new Observer<Integer>() {
                        @Override
                        public void onCompleted() {
                            Log.d(TAG, "onCompleted");
                        }

                        @Override
                        public void onError(Throwable e) {
                            Log.d(TAG, e.getMessage());
                        }

                        @Override
                        public void onNext(Integer integer) {
                            Log.d(TAG, integer.toString());
                        }
                    });
        } else if (id == R.id.nav_slideshow) {
            ArrayList<Observable<Integer>> observables = new ArrayList<>();
            for (int i = 0; i <= 5; i++) {
                observables.add(Observable.just(i));
            }

            Observable.zip(observables, new FuncN<String>() {
                @Override
                public String call(Object... args) {
                    String resultString = "";
                    for (Object arg:
                         args) {
                        resultString = resultString + "," + arg.toString();
                    }
                    return resultString;
                }
            })
                    .flatMap(new Func1<String, Observable<String>>() {
                        @Override
                        public Observable<String> call(String s) {
                            Log.d(TAG, "图片id:" + s);
                            return Observable.just("模拟请求接口");
                        }
                    })
                    .subscribe(new Action1<String>() {
                        @Override
                        public void call(String s) {
                            Log.d(TAG, s);
                        }
                    });
//            Observable.just(1, 2, 3, 4, 5)
//                    .doOnUnsubscribe(new Action0() {
//                        @Override
//                        public void call() {
//                            Log.d(TAG, "doOnUnsubscribe");
//                        }
//                    })
//                    .doOnNext(new Action1<Integer>() {
//                        @Override
//                        public void call(Integer integer) {
//                            Log.d(TAG, integer.toString());
//                        }
//                    })
//                    .subscribe();

//                    .scan(new Func2<Integer, Integer, Integer>() {
//                        @Override
//                        public Integer call(Integer integer, Integer integer2) {
//                            return integer + integer2;
//                        }
//                    })
//                    .subscribe(new Observer<Integer>() {
//                        @Override
//                        public void onCompleted() {
//                            Log.d(TAG, "onCompleted");
//                        }
//
//                        @Override
//                        public void onError(Throwable e) {
//                            Log.d(TAG, e.getMessage());
//                        }
//
//                        @Override
//                        public void onNext(Integer integer) {
//                            Log.d(TAG, integer.toString());
//                        }
//                    });
        } else if (id == R.id.nav_manage) {

        } else if (id == R.id.nav_share) {

        } else if (id == R.id.nav_send) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }
}
